I would recommend having the furnace cleaned annually but the ducts less frequently. It really depends on the person (allergies, etc.) and the home (number of pets, etc.).
Can round flex ducts be cleaned?
Are solid square ducts better and cleaner than collapsable types?
When cleaning the return ducts should all registers be covered to prevent dust from going thru the house while the fan is on?
I think a lot of dust got sucked into my ceiling ducts. I can clean one day and write my name in the dust the next day. What do you recommend?
How do I get rid of a musty smell in my house?
Are registers and vents the same thing?
Copyright © 2018 HubPages Inc. and respective owners. Other product and company names shown may be trademarks of their respective owners. HubPages® is a registered Service Mark of HubPages, Inc. HubPages and Hubbers (authors) may earn revenue on this page based on affiliate relationships and advertisements with partners including Amazon, Google, and others.
Copyright © 2018 HubPages Inc. and respective owners.